CN110034942A - A kind of group-net communication control method and system based on semi duplex radio station - Google Patents
A kind of group-net communication control method and system based on semi duplex radio station Download PDFInfo
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- CN110034942A CN110034942A CN201910308646.9A CN201910308646A CN110034942A CN 110034942 A CN110034942 A CN 110034942A CN 201910308646 A CN201910308646 A CN 201910308646A CN 110034942 A CN110034942 A CN 110034942A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/44—Star or tree networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
Abstract
The group-net communication control method based on semi duplex radio station that this application provides a kind of, wherein, the step of this method includes: to judge whether to receive control instruction, if being in idle condition in the case where not receiving control instruction, link state inquiry is then carried out according to certain period, link state heartbeat codeword sequence is put into state queue periodically；If receiving control instruction, generating state is jumped, and state codeword sequence corresponding to control word is put into state queue；Timing is extracted state code word and is parsed from state queue, calculates timing intervals for status code word operation related with delay, while according to current network topology situation；It is delayed when being delayed corresponding, response corresponding state code word sends or receives.Herein described technical solution is directed to the communication feature of stelliform connection topology configuration, using the mechanism of program request response, by combining prior information and bitmap control, is effectively reduced to from the frequent scheduling of node, improving the control efficiency of constructing communication network in vain.
Description
Technical field
This application involves network communication field, in particular to a kind of group-net communication control method based on semi duplex radio station and
System.
Background technique
Semi duplex radio station is received and dispatched system by it and is limited, and can only unidirectionally be received or sent in synchronization, Wu Fatong
Shi Jinhang transmitting-receiving operation.Multi-section semi duplex radio station will realize the star-like networking of " one master and multiple slaves ", and TDMA technology can be used, will be different
In the traffic assignments of node to different time slots, the multiplexing to wireless channel is realized by the division of time slot.
On one point to the stelliform connection topology configuration network organizing of multiple spot during, host node is to multiple poll program requests from node
It is confirming electrical connection status and to establish the basic process of heartbeat maintenance between network node.Semi duplex radio station wheel is realized based on TDMA technology
When asking program request, need to carry out stringent timing control to the transmitting-receiving operation between main and subordinate node, to avoid multi-section when poll program request
Radio station is sent simultaneously, wireless channel competition interference is occurred, is influenced communication quality.When being carried out to the multi-section semi duplex radio station in network
Sequence control, on the one hand will consider foundation, the release time of semi duplex radio station itself PTT signal, synchronization time etc. factors, another party
Face is also contemplated that support situation, including transmission delay, communication pattern, network size to business datum etc., Multiple factors it
Between often various degrees restricting relation.
Summary of the invention
One of in order to solve the above problem, the group-net communication control method that this application provides a kind of based on semi duplex radio station and
System.
According to the first aspect of the embodiment of the present application, a kind of group-net communication controlling party based on semi duplex radio station is provided
The step of method, this method includes:
Judge whether to receive control instruction, if being in idle condition in the case where not receiving control instruction, according to certain
Period carry out link state inquiry, link state heartbeat codeword sequence is put into state queue periodically；If receiving control
Instruction, then generating state jumps, and state codeword sequence corresponding to control word is put into state queue；
Timing is extracted state code word and is parsed from state queue, for status code word operation related with delay, simultaneously
Timing intervals are calculated according to current network topology situation；
It is delayed when being delayed corresponding, response corresponding state code word sends or receives.
Preferably, the step of this method further include: when receiving data, judge whether to receive target data, if receiving
To target data, then the data packet received is stored in receiving queue.
Preferably, when sending data, judge whether to send target data, if target data is sent, by the mesh of transmission
It marks data and is stored in transmit queue.
Preferably, the step of this method further include: according to the digit and ID of master & slave control relationship in transmission process and slave station
Number, calculate transmission time slot；M-th from node Zi receive host node program request message to obtain channel slot start time be t=
(m-1)·tτ；T=t is divided between the operation of transmission twice of main website0+n·tτ；Wherein, n is currently in bit quantity, tτFor
Each time slot, t are distributed from node0For semi duplex radio station itself PTT conversion timing signal.
Preferably, the step of this method further include: main website is inserted into the free time of respective number after broadcast issues a message
State waits the response message to be received from slave station；
Slave station is after receiving a message from main website, the same idle state for being inserted into respective numbers, Mei Gecong
It stands and responds the status code of host node again after being inserted into corresponding idle state time slot delay.
According to the second aspect of the embodiment of the present application, a kind of group-net communication control system based on semi duplex radio station is provided
System, the system include:
Ultrashort wave radio set, for sending and receiving data；
Communication controler judges whether to receive control instruction, if being in idle condition in the case where not receiving control instruction,
Link state inquiry is then carried out according to certain period, link state heartbeat codeword sequence is put into state queue periodically；
If receiving control instruction, generating state is jumped, and state codeword sequence corresponding to control word is put into state queue；Periodically
State code word is extracted from state queue and is parsed, for status code word operation related with delay, while according to current network
Topology situation calculates timing intervals；It is delayed when being delayed corresponding, response corresponding state code word sends or receives.
Preferably, the communication controler also executes the following steps: when receiving data, judges whether to receive number of targets
According to if receiving target data, by the data packet received deposit receiving queue.
Preferably, the communication controler also executes the following steps: when sending data, judges whether to send number of targets
According to if sending target data, by the target data deposit transmit queue of transmission.
Preferably, the communication controler also executes the following steps:
According to the digit and ID number of master & slave control relationship in transmission process and slave station, transmission time slot is calculated；M-th from node
It is t=(m-1) t from the slot start time for receiving host node program request message to acquisition channelτ；The transmission twice of main website operates
Between between be divided into t=t0+n·tτ；Wherein, n is currently in bit quantity, tτTime slot, t are distributed from node to be each0For half-duplex
Radio station itself PTT conversion timing signal.
Preferably, the communication controler also executes the following steps: main website after broadcast issues a message, and insertion is corresponding
The idle state of number waits the response message to be received from slave station；
Slave station is after receiving a message from main website, the same idle state for being inserted into respective numbers, Mei Gecong
It stands and responds the status code of host node again after being inserted into corresponding idle state time slot delay.
Herein described technical solution is directed to the communication feature of stelliform connection topology configuration, in conjunction with business demand, using broadcast number
According to the mechanism of program request response is effectively reduced by combining prior information and bitmap control in vain from the frequent tune of node
Degree, improves the control efficiency of constructing communication network.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the group-net communication control system described in this programme based on semi duplex radio station；
Fig. 2 shows the schematic diagrames of the group-net communication control method described in this programme based on semi duplex radio station.
Specific embodiment
In order to which technical solution in the embodiment of the present application and advantage is more clearly understood, below in conjunction with attached drawing to the application
Exemplary embodiment be described in more detail, it is clear that described embodiment be only the application a part implement
Example, rather than the exhaustion of all embodiments.It should be noted that in the absence of conflict, embodiment and reality in the application
The feature applied in example can be combined with each other.
The core ideas of this programme allow for due to semi duplex radio station can not be received and dispatched simultaneously and without time slot allocation control,
Synchronization only allows a communication node to send, remaining communication node can be only in this problem for receiving shape, using program request
Prior information and bitmap control are combined, are comprehensively considering network size, ultrashort wave radio set PPT signal etc. by the mechanism of response
Under factor, semi duplex radio station is supported to realize the group-net communication demand of point to multi--point in stelliform connection topology configuration.
As shown in Figure 1, group-net communication control method described in this programme be suitable for the networking of half-duplex ultrashort wave radio set into
Row control, for example, networking includes 1 host node and several from node, each node by via minimization, half-duplex ultrashort wave radio set and
Business terminal composition, communication controler control the group network process of whole network.The realization of this method mainly divides three parts, specifically
It is as follows:
1, using in place from the prior information of number of nodes, realizing accurate networking access delay control in network；
It is considered as the prior information of network in bit quantity from node in current network, is hiding channel confliction and time slot
Can accurately delay be prejudged and be preset in assigning process, be solved as the networking caused by the number of nodes dynamic change
Process delay is too long, and the uncertain problem of group network process delay.
2, the timing control and networking scheduling to ultrashort wave radio set are realized using the framework of state queue and sequential state machine；
It, can to the control flow of each communication process according to the characteristic of half-duplex ultrashort wave radio set and network function demand
It is one group of fixed state code word with abstract representation, finite state machine is responsible for the condition managing of software, is read from state queue
State code word executes corresponding control action according to numeral content order.The framework of state queue and sequential state machine enhances
The robustness of network-control process, can effectively prevent control flow contention time slot and caused by timing control confusion phenomena, prevent
During via minimization is in some unfinished timing control, the message due to caused by operation or link flapping is nested, can
To realize the stability contorting to nodes timing.
3, on the basis of considering the conversion of ultrashort wave radio set reiving/transmitting state, network scheduling efficiency is improved, is shortened multiple from section
Under the conditions of point is in place, the poll program request period of whole network.
By statistical analysis it is found that the influence factor that the networking of half-duplex ultrashort wave radio set is delayed, including ultrashort wave radio set
Transmitting-receiving transformation time, hide the conflict time and several parts of traffic handling time, therefore, this programme is every by minimizing design
One link, improves network scheduling efficiency, shortens the turn-on time of networking.
This programme is described further below by example.
In the present embodiment, the architectural form of the main adoption status queue of group-net communication control method and sequential state machine is real
It is existing.
Principal and subordinate's via minimization, in the ID number of digit and slave station itself, calculates the allocation plan of time slot according to current slave station, into
The control of row time slot collision and delays time to control.It is currently n in bit quantity, is each t from node distribution time slotτ, semi duplex radio station is certainly
Body PTT conversion timing signal is t0, then main website twice send operation between be divided into t=t0+n·tτ.M-th from node
It is t=(m-1) t from the slot start time for receiving host node program request message to acquisition channelτ。
Networking state of a control machine safeguards the networking state queue of a regular length, each message response mistake of via minimization
Journey is all indicated, such as " IDLE-IDLE-IDLE- by continuous status codes (be such as delayed, send out data) a series of in state queue
SEND " starts primary transmission operation after indicating three time slots of delay.
Main via minimization broadcast issue a message after, be inserted into the idle state of respective number, wait it is to be received from from
The response message of via minimization.One is being received after the message of main via minimization from communication controler, and same insertion is corresponding
The idle state of quantity, each slave station respond the status code of host node again after being inserted into corresponding idle state time slot delay, can
To effectively prevent multiple collisions generated from platform while shared wireless channel.
Networking control timer is responsible for the timing control of communication controler, according to fixed timing beat reading state queue
In system mode control code, via minimization carries out corresponding control instruction according to corresponding status code and issues or respond, control hair
Send the signaling and business datum communication that either simplex ultrashort wave radio set is completed with receiving thread.
As shown in Fig. 2, control framework includes networking control timer thread and networking state of a control machine, sends thread and connect
Take-up journey.It transmits and receives thread control half-duplex ultrashort wave radio set and completes sending and receiving for data.Main working process is as follows:
1. networking state of a control machine is in idle condition in the case where not receiving control instruction, according to certain period into
Link state heartbeat codeword sequence, is put into state queue by Uplink State inquiry periodically；
2. networking state of a control machine is after receiving control instruction, generating state is jumped, by status code corresponding to control word
Word sequence is put into state queue；
3. networking control timer timing is extracted state code word and is parsed from state queue, for shape related with delay
The operation of state code word, while timing intervals are calculated according to current network topology situation；
4. delaying when timer delay is corresponding, the operation (sending or receiving) of corresponding state code word is responded；
5. sending thread is responsible for the target data that will be sent deposit transmit queue；
Receiving thread is responsible for the data packet received being stored in receiving queue.
This programme further discloses a kind of group-net communication control system based on semi duplex radio station, which includes: super
Short-wave radio set, for sending and receiving data；Communication controler judges whether to receive control instruction, if not receiving control instruction
In the case where be in idle condition, then link state inquiry is carried out according to certain period, periodically by link state heartbeat code
Word sequence is put into state queue；If receiving control instruction, generating state is jumped, by state code word sequence corresponding to control word
Column are put into state queue；Timing is extracted state code word and is parsed from state queue, for state code word related with delay
Operation, while timing intervals are calculated according to current network topology situation；It is delayed when being delayed corresponding, responds corresponding state code word
Send or receive.
In the present solution, the group-net communication control method can also realize its control function, the electricity by electronic equipment
Sub- equipment includes: memory, one or more processors；Memory is connected with processor by communication bus；Processor is matched
It is set to the instruction executed in memory；The finger for executing each step in method as described above is stored in the storage medium
It enables.
In the present solution, the group-net communication control method can also be recorded in computer readable storage medium, pass through meter
It is stored with computer program on calculation machine readable storage medium storing program for executing and realizes that control function, the program realize institute as above when being executed by processor
The step of stating method.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (10)
1. a kind of group-net communication control method based on semi duplex radio station, which is characterized in that the step of this method includes:
Judge whether to receive control instruction, if being in idle condition in the case where not receiving control instruction, according to certain week
Phase carries out link state inquiry, and link state heartbeat codeword sequence is put into state queue periodically；If receiving control instruction,
Then generating state jumps, and state codeword sequence corresponding to control word is put into state queue；
Timing is extracted from state queue and state code word and is parsed, for the related status code word operation that is delayed, while basis
Current network topology situation calculates timing intervals；
It is delayed when being delayed corresponding, response corresponding state code word sends or receives.
2. group-net communication control method according to claim 1, which is characterized in that the step of this method further include: connecing
When receiving data, judge whether to receive target data, if receiving target data, the data packet received is stored in and receives team
Column.
3. group-net communication control method according to claim 1 or 2, which is characterized in that when sending data, judge whether
Target data is sent, if sending target data, the target data of transmission is stored in transmit queue.
4. the method according to claim 1, wherein the step of this method further include: according to main in transmission process
From the digit and ID number of control planning and slave station, transmission time slot is calculated；M-th from node Zi receiving host node program request message to obtaining
The slot start time for obtaining channel is t=(m-1) tτ；T=t is divided between the operation of transmission twice of main website0+n·tτ；
Wherein, n is currently in bit quantity, tτTime slot, t are distributed from node to be each0For semi duplex radio station itself PTT conversion timing signal.
5. according to the method described in claim 4, it is characterized in that, the step of this method further include: main website issues one in broadcast
After message, it is inserted into the idle state of respective number, waits the response message to be received from slave station；
After receiving a message from main website, the same idle state for being inserted into respective numbers, each slave station exists slave station
It is inserted into after corresponding idle state time slot delay and responds the status code of host node again.
6. a kind of group-net communication control system based on semi duplex radio station, which is characterized in that the system includes:
Ultrashort wave radio set, for sending and receiving data；
Communication controler judges whether to receive control instruction, if being in idle condition in the case where not receiving control instruction, root
Link state inquiry is carried out according to certain period, link state heartbeat codeword sequence is put into state queue periodically；If receiving
To control instruction, then generating state jumps, and state codeword sequence corresponding to control word is put into state queue；Periodically from shape
State code word is extracted in state queue and is parsed, for status code word operation related with delay, while according to current network topology
Situation calculates timing intervals；It is delayed when being delayed corresponding, response corresponding state code word sends or receives.
7. group-net communication control system according to claim 6, which is characterized in that the communication controler also executes as follows
Step: when receiving data, judging whether to receive target data, if receiving target data, the data packet that will receive
It is stored in receiving queue.
8. group-net communication control system according to claim 7, which is characterized in that the communication controler also executes as follows
Step: when sending data, judge whether to send target data, if sending target data, the target data of transmission is stored in
Transmit queue.
9. group-net communication control system according to claim 7, which is characterized in that the communication controler also executes as follows
Step:
According to the digit and ID number of master & slave control relationship in transmission process and slave station, transmission time slot is calculated；M-th from node, oneself is received
Slot start time to host node program request message to acquisition channel is t=(m-1) tτ；Between the operation of transmission twice of main website
Between be divided into t=t0+n·tτ；Wherein, n is currently in bit quantity, tτTime slot, t are distributed from node to be each0For semi duplex radio station
Itself PTT conversion timing signal.
10. group-net communication control system according to claim 7, which is characterized in that the communication controler also executes such as
Lower step: main website is inserted into the idle state of respective number, waits answering from slave station to be received after broadcast issues a message
Answer message；
After receiving a message from main website, the same idle state for being inserted into respective numbers, each slave station exists slave station
It is inserted into after corresponding idle state time slot delay and responds the status code of host node again.
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| CN113268271A (en) * | 2021-04-25 | 2021-08-17 | 北京航天发射技术研究所 | Control method and device based on interrupt mode |
| CN113472431A (en) * | 2021-06-25 | 2021-10-01 | 中航光电科技股份有限公司 | Novel chain type optical communication network with double main frameworks |
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| 杜静: "《自组织网络分布式TDMA MAC协议设计与实现》", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 王陆江，张伟，张敬忠: "《基于TDMA的无线传感器网络时隙分配算法》", 《计算机工程与设计》 * |
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| CN113268271A (en) * | 2021-04-25 | 2021-08-17 | 北京航天发射技术研究所 | Control method and device based on interrupt mode |
| CN113268271B (en) * | 2021-04-25 | 2023-12-15 | 北京航天发射技术研究所 | Control method and device based on interrupt mode |
| CN113094321A (en) * | 2021-04-30 | 2021-07-09 | 中煤科工集团重庆研究院有限公司 | RS485 bus communication method based on group call and time slot allocation |
| CN113094321B (en) * | 2021-04-30 | 2022-04-26 | 中煤科工集团重庆研究院有限公司 | RS485 bus communication method based on group call and time slot allocation |
| CN113472431A (en) * | 2021-06-25 | 2021-10-01 | 中航光电科技股份有限公司 | Novel chain type optical communication network with double main frameworks |
| CN113472431B (en) * | 2021-06-25 | 2022-05-13 | 中航光电科技股份有限公司 | Novel chain type optical communication network with double main frameworks |
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